package com.cyh;

public class ObjectTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
//		String chen = "abc";
//		System.out.println(chen.hashCode());
		int sum = 0;
		for (int i = -100; i <= 100; ++i)
			sum += i;
		System.out.println(sum);
	}
}
